卵形弹斜冲击作用下平纹织物的动态响应分析

材料科学与工程学报, 2009, 27(5): 764-769.

卵形弹斜冲击作用下平纹织物的动态响应分析

李裕春 ^1, , 程克明 ^2, , 刘强 ^3, , 毛益明 ^4, , 沈蔚 ^5,

1.南京航空航天大学航空宇航学院,江苏南京,210016;解放军理工大学工程兵工程学院,江苏南京,210007

2.南京航空航天大学航空宇航学院,江苏南京,210016

3.解放军理工大学工程兵工程学院,江苏南京,210007

4.解放军理工大学工程兵工程学院,江苏南京,210007

5.解放军理工大学工程兵工程学院,江苏南京,210007

关键词：平纹织物 , 弹道冲击 , 能量吸收 , 边界条件 , 断裂

Dynamic Response of Plain-woven Fabric to Oblique Impact of an Ogival Nosed Projectile

利用LS-DYNA有限元软件模拟了卵形弹倾斜冲击作用下平纹织物的动态响应,分析了织物的变形、纱线断裂以及能量吸收特性,讨论了边界约束条件对织物动态响应的影响.结果表明:在弹体贯穿织物过程中,纱线应变能和摩擦耗散能是弹体动能转变的主要形式.在给定的计算时间内,对于四边无约束、对边(经向和纬向)固定约束和四边固定约束的四种边界条件,两者之和占弹体动能损失量的比例不小于80.5%.模拟结果还表明,边界条件对织物的变形、纱线断裂以及能量吸收特性均有明显影响.边界条件不同,纱线断裂数目不同,弹体动能损失量转变成其它能量的比例也不同,导致织物的能量吸收特性也发生变化.

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材料期刊网

卵形弹斜冲击作用下平纹织物的动态响应分析

Dynamic Response of Plain-woven Fabric to Oblique Impact of an Ogival Nosed Projectile

参考文献